5 Before you start Sketch your application The ECL Comfort controller series is designed for a wide range of heating and hot-water systems with different configurations and capacities. If your system differs from the diagrams shown in section 10, you may want to make a sketch of the system about to be installed. This makes it easier to use the Installer s Guide, which will guide you step-by-step from installation to final adjustments before the end-user takes over. The controller is pre-programmed with factory settings that are shown in the relevant sections of this guide. However, you might come across some settings that are not listed in this instruction. These settings could be related either to recent updates or the use of optional modules (which are described in the instructions in question). How to use this guide This guide is divided into two parts: User s Guide: Yellow sections 1-7 Installer's Guide: Grey sections 10 and onwards The application P30 is very flexible. These are the basic principles: Typically, the flow temperature is always adjusted according to your requirements. The flow temperature sensor (S3) is the most important sensor. The desired flow temperature at S3 is calculated in the ECL Comfort controller, based on the outdoor temperature (S1). The lower the outdoor temperature, the higher the desired flow temperature. The motorized control valve (M1) is opened gradually when the flow temperature is lower than the desired flow temperature and vice versa. The return temperature (S4) to the district heating supply should not be too high. If so, the desired flow temperature can be adjusted (typically to a lower value) thus resulting in a gradual closing of the motorized control valve. In boiler-based heating supply the return temperature should not be too low (same adjustment procedure as above). If the measured room temperature does not equal the desired room temperature, the desired flow temperature can be adjusted. The circulation pump, P1, is ON when the desired flow temperature is higher than 20 C or the outdoor temperature is lower than 2 C. VI.7B.C5.02 Card P

6 10a Identifying the system type Installation The ECL Comfort controller is a universal controller that can be used for various systems. Based on the shown standard systems, it is possible to configure additional systems. In this section you find the most frequently used systems. If your system is not quite as shown below, find the diagram which has the best resemblance with your system and make your own combinations Indirectly connected heating system 10.2 Directly connected heating system

7 10b 10.3 Boiler system with 3-way valve Installation 10.4 Boiler system with 4-way rotary valve System diagrams in this instruction are principal drawings and do not contain all components which are necessary in your systems.

8 Installation 11a Mounting the ECL Comfort controller For easy access, you should mount the ECL Comfort controller near the system. Select one of the three following methods: Mounting on a wall Mounting on a DIN rail Mounting in a panel Screws and rawlplugs are not supplied. Mounting on a wall Socket for mounting on wall: Order code No. 087B1149. Mount the terminal box on a wall with a smooth surface. Establish the electrical connections and position the controller in the box. Secure the controller with the fixing screw. Mounting on a DIN rail Mounting kit: Order code No. 087B1145. A mounting kit is necessary to mount the box with the controller on a DIN rail. Mounting in a panel Connector set: Order code No. 087B1148. The panel plate thickness must not exceed 3 mm. Prepare a cut-out with the dimensions 93 x 139 mm. Pull off the right side of the lid by means of a screwdriver. Insert the controller into the panel cut-out and fix it with the two locks which are placed diagonally in two corners of the controller.

9 11b Installation

10 12a Electrical connections V a.c. - in general 230 V a.c. connections - without safety thermostat Installation Establish these jumpers: and 2 to common N-terminal. 230 V a.c. connections - with safety thermostat This circuit diagram is only valid if Danfoss actuators are used Establish these jumpers: Safety thermostat: 4, 5 and 10 with ST- (safety thermostat) and 2 to common N-terminal.

15 14b It is important that the sensors are mounted in the correct position in your system. The temperature sensor mentioned below are sensors used for the ECL Comfort 200 and 300 series which not all will be needed for your application! Outdoor temperature sensor (ESMT) The outdoor sensor should be mounted on that side of the building where it is less likely to be exposed to direct sunshine. It should not be placed close to doors, windows or air outlets. Installation Flow temperature sensor (ESMU, ESM-11 or ESMC) Place the sensor max. 15 cm from the mixing point. In systems with heat exchanger, Danfoss recommends that the ESMU-type to be inserted into the exchanger flow outlet. Make sure that the surface of the pipe is clean and even where the sensor is mounted. Return temperature sensor (ESMU, ESM-11 or ESMC) The return sensor should always be placed in / on a pipe with return water flow. Room temperature sensor (ESM-10, ECA 60 / 62 room panel or ECA 61 / 63 remote control) Place the room sensor in the room where the temperature is to be controlled. Do not place it on outside walls or close to radiators, windows or doors. DHW temperature sensor (ESMU or ESMB-12) Place the DHW temperature sensor according to the manufacturer s specification. Boiler temperature sensor (ESMU, ESM-11 or ESMC) Place the sensor according to the boiler manufacturer s specification. Flow / air duct temperature sensor (ESM-11, ESMB-12, ESMC or ESMU types) Place the sensor so that it measures a representative temperature. Surface temperature sensor (ESMB-12) Place the sensor in the surface of the floor. Valid for ESM-11: Do not move the sensor after it has been fastened in order to avoid damage to the sensor element.

16 14c Connecting the room panel / remote control Installation The ECA 60 / 61 / 62 / 63 is activated by the setting in line 10 (section 32). The ECA 60 / 61 / 62 / 63 is powered by the system device bus which means that the bus must be active. The bus is activated by setting the controller address to 15 (section 32, line 199). Override For an active override, you have to choose the mode scheduled operation! Input S1... S4 can be used for override purposes (section 32, line 141). Connection example without ECA 9010 If the override switch has goldplated contacts, you can choose one of the following solutions or a combination of both: Closed switch: Comfort temperature Open switch: Scheduled operation Closed switch: Setback temperature Open switch: Scheduled operation Connection example with ECA 9010 The ECA 9010 module is powered by the system device BUS, which means that the BUS must be active. The BUS is activated by setting the controller address to 15 (line 199). To avoid influence from contact resistance, the use of ECA 9010 is recommended. Red Brown Green S1... S4 Comfort Setback

17 Adapting the ECL Comfort controller 15 Open the lid and switch on the controller. The display will show you the system type (P16, P17, P20 or P30). Display examples: P Installation Choose the system type printed on your ECL Card. Accept to set up the chosen system type. While the setup is in operation, the data transfer display will appear. P17 After initializing, the display will return to the standard display C on the yellow side of the ECL Card. C The controller is now ready to control the chosen system. You can make your own adjustments / settings in daily use and in the basic set-up and change the extended service settings. Insert the ECL Card with the grey side facing you. Select the grey side of the ECL Card for the basic set-up and extended service parameters. See section 16 for general principles of operation and section 17 for setting the time and date.

18 Installation 16 Adjusting the ECL Card settings General principles When the controller is connected and operating you can check and adjust all or some of the basic settings. Turn the ECL Card so that the grey side is facing you (see the example below). Use the arrow buttons to move from line to line of the ECL Card, for example line 2: 1 1 ON 2 ON 2 3 ON Line Setting to be adjusted 2 40 Value in range indicator 90 Use the plus / minus buttons to adjust the settings. In some displays more than one setting or value can be adjusted. Use the shift button to switch between the options. Changing from one side of the ECL Card to the other When changing from the grey side of the ECL Card to the yellow side, you will always enter line C and the standard display. C If you change from the yellow side to the grey side, you will always enter line A - Time and date. If several controllers are installed in the system, you can write a title on the ECL Card with a permanent ink pen.

19 Setting the time and date - line A 17 Actual time A 1035 Year Month, day Installation Use the shift button to switch between minutes, hours, years, months and days. Set the correct time and date. In case of a power break, which lasts longer than 12 hours, the time and the date have to be set again. All other settings are stored as programmed. Use the yellow side of the card to change the schedules. See User s Guide, section 4.

20 18 Monitoring temperatures and system units - line B Controlled units B 1 1 ON Flow temp Return temp. Push and hold the shift button to see: - the calculated flow temperature - the desired return temperature limitations. Basic set-up The activity of the motorized control valve is shown as arrows below the valve symbol. When the circulation pump is operating, it is indicated as ON below the pump symbol. If a sensor is not mounted or is disconnected, the display will indicate it as - -. If the sensor is short-circuited, the display will indicate it as If you are in doubt, remove the controller and check the ohmic value between the relevant terminals. Relationship between temperature and ohmic value Ω C Ω C The grey side of the ECL Card

21 Manual control - line B 19 Shift to manual mode. Controlled units B 1 1 ON Controller mode Choose the unit you want to control. The selected unit symbol will blink. Controlled units are switched the relevant button is pushed. OFF or ON when The motorized actuator (gear motor / damper) closes or opens the controlled unit as long as the relevant button is pushed. If pushed for more than 3 seconds, the actuator continues to close or open the valve. The thermo actuator Basic set-up activates the valve as long as the button is pushed. If pushed for more than 3 seconds, the actuator continues to open the valve. Check the activation direction of the actuator either by looking at it or by feeling whether the temperature of the actual pipe changes as expected. This operation applies to both circuits, if available. During manual operation, all control functions are deactivated. The grey side of the ECL Card

22 20a Setting the heat curve - line C C ON ON 18 ON 0 Slope Displacement Slope Basic set-up oc 1.4 The symbol for the slope of the heat curve will blink. Adjust the slope of the heat curve, if required oc How to determine another heat curve, if necessary: Choose the calculated flow temperature for your system and the determined min. outdoor temperature for your area. Pick the heat curve closest to the crossing point of these two values. The setting of the desired room temperature has an influence on the calculated flow temperature (heat curve), no matter if a room temperature sensor is connected or not. Floor heating systems This controller is factory set for radiator systems, which typically are high flow temperature systems. To control floor heating systems, which typically are low flow temperature systems, you need to change the heat curve according to your type of system. Slope Typical setting Whether it is reasonable to change the slope or parallel displacement will depend on the individual heat requirement. Small increases or reductions in the heating temperature can be implemented by means of the parallel displacement. The grey side of the ECL Card

23 20b Parallel displacement If you want to adjust the parallel displacement of the heat curve, push the shift button. The symbol for the parallel displacement will blink. Make your adjustments. Basic set-up The grey side of the ECL Card

24 21 Heating cut-out - line ON ON 18 1 Limit for heating cut-out C 18 C Basic set-up Temp. Set the outdoor temperature limit at which you want the heating system to stop. The valve closes and after about 3 min. the heating circulation pump stops. The min. limitation set in line 2 will be ignored. Actual outdoor temp. Accumulated outdoor temp. 18 C Heating Heating OFF Heating Time This function can save energy by stopping the heating system when the outdoor temperature gets above a set limit. The heating system switches ON again when the outdoor temperature and the accumulated outdoor temperature become lower than the set limit. The heating cut-out is only active when the controller mode is scheduled operation. When the limit value is set to 30, there is no heating cut-out. The grey side of the ECL Card

25 Flow temperature limits - line ON ON ON 2 Min. flow temp Max. flow temp. 2 Flow temperature limits, min. and max C min.10, max. 90 C The mentioned setting range and factory settings may vary from the settings related to your ECL Card. The left end of the setting range blinks. Adjust the min. limit of your system temperature. Choose the max. limit. The right end of the setting range blinks. Basic set-up Adjust the max. limit. The grey side of the ECL Card

26 23a Room temperature influence - line 3 This section is only relevant if you have installed a room sensor or ECA 60 / ECA 61 / ECA 62 / ECA ON 1 2 ON 3 ON Min. influence Max. influence Basic set-up 3 Room temperature influence / min. 0, max. -40 The bar below the min. value blinks. Adjust the min. influence. Select the max. influence. The bar below the max. value blinks. Adjust the max. influence. There are two basic principles for control of the room temperature influence: A: Max. room temperature limitation Use this limitation if your heating system is fully equipped with radiator thermostats and you also want to obtain a max. limitation of the room temperature. The controller will allow for free heat gains, i.e. solar radiation or heat from a fire place, etc. Influence Desired room temperature Room temperature Max. limitation The max. influence determines how much the room temperature should influence the desired flow temperature. The grey side of the ECL Card

27 23b B: Reference room temperature control Used if your heating system is not equipped with radiator thermostats and you select the room with room sensor as a temperature reference for the rest of the rooms. (However, should you have a few radiator thermostats installed, make sure that they are fully open). Set a positive value for the min. influence and a negative value for the max. influence. Influence Min. limitation Max. limitation Desired room temperature Room temperature Basic set-up The room sensor in the reference room registers the difference between the desired and the actual room temperature. The desired flow temperature will be corrected to eliminate this difference. Example 1 The actual room temperature is 2 degrees too low. The influence at max. limitation (right corner of the display) is set to -35. The influence at min. limitation (left corner of the display) is set to 20. Heat curve H is 1.8. Result: The desired flow temperature is changed by 2 x 20 x 1.8 x 0.1= 7.2 degrees. Example 2 The actual room temperature is 2 degrees too high. The influence at max. limitation (right corner of the display) is set to -35. The influence at min. limitation (left corner of the display) is set to 20. Heat curve H is 1.8. Result: The desired flow temperature is changed by 2 x (-35) x 1.8 x 0.1= degrees. The grey side of the ECL Card

28 26a Control parameters - lines Proportional band, Xp K 80 K Set the proportional band. A higher value will result in a stable but slow control of the flow temperature. 5 Integration time constant, Tn sec. 30 sec. Basic set-up Set a high integration time constant to obtain a slow but stable reaction to deviations. A small integration constant will make the controller react fast but with less stability 6 Running time of the motorized control valve sec. 35 sec. Set the running time of the motorized control valve according to the example. This is the time it takes the controlled unit to move from fully closed to fully open position. How to calculate the running time of a motorized control valve The running time of the motorized control valve is calculated using the following methods: Seated valves Running time = Example: Rotating valves Running time = Example: Valve stroke (mm) x actuator speed (sec. / mm) 5.0 mm x 15 sec. / mm = 75 sec. Turning degrees x actuator speed (sec. / degr.) 90 degrees x 2 = 180 sec. The grey side of the ECL Card

29 26b 7 Neutral zone, Nz K 3 K Set the neutral zone to a high value if you can accept a high variation in flow temperature. When the actual flow temperature is within the neutral zone, the controller does not activate the motorized valve. The neutral zone is symmetrical around the desired flow temperature value, i.e. half the value is above and half the value is below this temperature. If you want to tune the PI regulation precisely, you can use the following method: Set the integration time (line 5) to its max. value (999 sec.). Basic set-up Decrease the value for the proportional band (line 4) until the system starts hunting with a constant amplitude (it might be necessary to force the system by setting an extreme value). Find the critical time period on the temperature recording or use a stop watch. Temp. Critical time period Time This time period will be characteristic for the system, and you can evaluate the settings from this critical period. Integration time = 0.85 x critical time period Proportional band = 2.2 x proportional band value in the critical time period. If the regulation seems to be too slow, you can decrease the proportional band value by 10%. Make sure there is a consumption when you set the parameters. The grey side of the ECL Card

30 29a Check list Is the ECL Comfort controller ready for use? Make sure that the correct power supply is connected to terminals 1 (Live) and 2 (Neutral). See section 12 or 13. Check that the required actuators, pumps, fans, dampers and burners are connected to the correct terminals. See sections 12 or 13. Check that all sensors are connected to the correct terminals. See section 14. Mount the controller and switch on the power. Insert the ECL Card with the yellow side facing you and push, if necessary. See section 15. Choose manual operation as controller mode. See section 2. Check that valves open and close, and that required pumps, fans, dampers and burners start and stop when operated manually. See section 19. Having completed the manual operation check, choose scheduled operation as controller mode. Control & overviews Check that the temperatures shown in display A and B match the actual sensors. See section 1.

31 Adapting the ECL Comfort controller to the system Turn the ECL Card so that the grey side faces you and push, if necessary. Set the time and the date (line A). See section 17. Check that all settings in the controller (sections 30 and 31) are set or that the factory settings comply with your requirements. If your system differs from the diagram shown on the cover, you should check and alter your service parameters, if necessary. Check that the system settings mentioned in section 10 have been set correctly. 29b Control & overviews

34 32 Adjusting the service parameters In addition to the settings in line 1 to 7 on the grey side of the ECL Card, there is an extended service menu from line 10 and onwards. Push repeatedly to reach the lines numbered 10 and onwards. Line 10 0 Value Range indicator Now you can move to any line of your choice. Set the parameter value. Check that you have entered all the required settings. Make a note of your new settings in the parameter list in section 31. When you have entered all your personal settings, turn the ECL Card over so that the yellow side faces you. Extended service The grey side of the ECL Card

35 Service parameter(s) a 10 Choice of room panel / remote control Decides the communication with the room panel or remote control. Please note that the room panel / remote control is only active if the system device bus is active. The bus is active when the outdoor temperature sensor is connected. Choose between 0: No room panel / remote control 1: Room panel ECA 60 / 62 or remote control ECA 61 / 63 with address A 2: Room panel ECA 60 / 62 or remote control ECA 61 / 63 with address B : Not used 11 Setback temperature dependent on outdoor temperature OFF / C -15 C Below this outdoor temperature, the setback temperature setting has no influence : The setback temperature depends on the outdoor temperature, when the outdoor temperature is above the set limit. The lower the outdoor temperature, the less the temperature reduction. When the outdoor temperature is below the set limit, there is no temperature reduction. OFF: The setback temperature does not depend on the outdoor temperature. Reduction 100% 0% Setting line 11 Outdoor temperature C Extended service The grey side of the ECL Card

36 32b Service parameter(s) Boost % 0% Shortens the heating-up period by increasing the desired flow temperature by the percentage you set. Set the percentage at which you want the desired flow temperature increased temporarily. In order to shorten the heating-up period after a setback temperature period, the desired flow temperature can be increased temporarily (max. 1 hour). At optimizing the boost is active in the optimization period (line 14). If a room temperature sensor or an ECA 60 / 61 / 62 / 63 is connected, the boost stops when the room temperature has been reached. The boost also stops at the end of an optimizing period. 14 Optimizing time constant OFF / OFF Optimizes the start and stop times for the comfort temperature period to obtain the best comfort at the lowest energy consumption. The lower the outdoor temperature, the earlier the heating cut-in. Adjust the optimizing time constant. The value consists of a two digit number. The two digits have the following meaning: Extended service Digit 1 Heat accumulation of the building System type 1 light Radiator systems 2 medium 3 heavy 4 medium Floor heating systems 5 heavy Digit 2 Dimensioning Capacity temperature 0-50 C large 1-45 C 5-25 C normal 9-5 C small OFF: No optimization. The heating starts and stops at the times set in the schedule. Dimensioning temperature: The lowest outdoor temperature (usually determined by your system designer in connection with the design of the heating system) at which the heating system can maintain the designed room temperature. The grey side of the ECL Card

37 Service parameter(s) c 15 Adaptive function of room temperature OFF / OFF Controls how fast the room temperature adapts to the desired room temperature. The adaptive funtion will eliminate the difference between the desired and the actual room temperature. This is done by integrating the difference and adjusting the desired flow temperature. OFF: The adaptive funtion is cancelled. 1: The desired temperature is adapted quickly. 30: The desired temperature is adapted slowly. 20 Optimization based on room / outdoor temperature ON / OFF OFF The optimized start and stop time can be based on either room or outdoor temperature. ON: Optimization based on room temperature, if measured. OFF: Optimization based on outdoor temperature. Use this setting if the room temperature is not measured. Extended service The grey side of the ECL Card

38 32d Service parameter(s) Total stop ON / OFF OFF Decide whether you want a total stop during the setback temperature period. ON: The desired system temperature is lowered to 10 C. The min. setting of the temperature (line 2, section 22) is overruled. Desired system temp. ( C) 10 C Time OFF: No total stop Desired system temp. ( C) 10 C Extended service Time 22 Pump exercise ON / OFF ON Exercises the pump to avoid blocking in periods without heat demand. ON: The pump is switched ON for 1 minute every third day around noon. OFF: The pump exercise is not active. The grey side of the ECL Card

39 Service parameter(s) e 23 Valve exercise ON / OFF OFF Exercises the valve to avoid blocking in periods without heat demand. ON: The valve receives a signal to open and close every third day around noon. OFF: The valve exercise is not active. 24 Gear motor / thermo actuator ON / OFF Choose the actuator type for your valve. ON ON: Gear motor OFF: Thermo actuator (ABV type) Control parameters (lines 4-7) are overruled if thermo actuator is chosen (OFF). 30 Return temperature limitation C 50 C Set the return temperature you accept for the system. Set the acceptable return temperature limit. When the return temperature falls below or gets higher than the set value, the controller automatically changes the desired flow temperature to obtain an acceptable return temperature. The influence is set in lines 35 and 36. Extended service The grey side of the ECL Card

40 32f Service parameter(s) Return temperature influence - max. limitation Set the influence from the return temperature on the desired flow temperature. Set the influence of the max. return temperature limitation (set in line 30). Influence higher than 0: The desired flow temperature is increased, when the return temperature gets higher than the set limit. Influence lower than 0: The desired flow temperature is decreased, when the return temperature gets higher than the set limit. Influence Max. limitation > 0 0 Return limit Max. limitation < 0 Return temp. Example The return limit is active from 50 C. The influence is set to The actual return temperature is 2 degrees too high. Result: The desired flow temperature is changed by -2.0 x 2 = -4 degrees. Extended service Normally, the setting in line 35 is lower than 0 in district heating systems to avoid a too high return temperature. Typically, the setting in line 35 is 0 in boiler systems because a higher return temperature is acceptable (see also line 36). The grey side of the ECL Card

41 Service parameter(s) 36 32g 36 Return temperature influence - min. limitation Set the influence from the return temperature on the desired flow temperature. Set the influence of the min. return temperature limitation (set in line 30). Influence higher than 0: The desired flow temperature is increased, when the return temperature gets below the set limit. Influence lower than 0: The desired flow temperature is decreased, when the return temperature gets below the set limit. Influence Min. limitation > 0 0 Return limit Return temp. Min. limitation < 0 Example The return limit is active up to 50 C. The influence is set to The actual return temperature is 2 degrees too low. Result: The desired flow temperature is changed by -3.0 x 2 = -6 degrees. Normally, the setting in line 36 is 0 in district heating systems because a lower return temperature is acceptable. Typically, the setting in line 36 is higher than 0 in boiler systems to avoid a too low return temperature (see also line 35). Extended service The grey side of the ECL Card

42 32h Service parameter(s) Time constant for return temperature limitation OFF / Controls how fast the actual return temperature adapts to the desired return temperature limitation. Adjust the time constant for the return limitation. The setting will eliminate the difference between the acceptable and the actual return temperature. The difference is integrated to adjust the desired flow temperature. OFF: The desired flow temperature will not be adjusted any further. 1: The desired flow temperature will be adjusted quickly. 50: The desired flow temperature will be adjusted slowly. 52 Closed valve / normal operation ON / OFF OFF The heating circuit can be closed when the controller acts as slave and when DHW charging is active in the master. ON: The valve in the heating circuit is closed* during active DHW charging in the master controller. OFF: The flow temperature control remains unchanged during active DHW charging in the master controller. * The desired flow temperature is set to 10 C. Extended service The setting in line 52 must be considered if this controller is a slave. 85 Priority for return temperature limitation ON / OFF OFF Choose whether the return temperature limitation should overrule the set min. flow temperature limit (line 2). ON: The min. flow temperature limit is overruled. OFF: The min. flow temperature limit is not overruled. The grey side of the ECL Card

43 Service parameter(s) i 141 Override input selection OFF / OFF Choose an unused temperature sensor input for overriding the schedule. The override can be activated for comfort or setback mode. For override the controller's mode must be in 'scheduled operation'! OFF: The controller's schedule is not overridden : Select an unused sensor input S1... S4 for the override. Connection example If the override switch has gold-plated contacts, you can choose one of the following solutions: Closed switch: Comfort temperature Closed switch: Setback temperature Changeover switch: Setback or comfort temperature Connection example with ECA 9010 (used if the override switch does not have gold-plated contacts). Red Brown Green (S1... S4) Extended service The ECA 9010 module is powered by the system device bus, which means that the bus must be active. The bus is activated by setting the controller address to 15 (line 199). The grey side of the ECL Card

44 32j Service parameter(s) Motor protection OFF / min. OFF Prevents the controller from unstable temperature control (and resulting actuator oscillations). This can occur when there is no DHW tapping, i.e. when the load is only due to the DHW circulation, or when the heating demand in the heating circuit is very low. The motor protection increases the lifetime of all involved components. OFF: Motor protection is not activated : Motor protection is activated after the set activation delay. A high value should be used for DHW installations with many consumers. 189 Min. activation time, gear motor The min. pulse length in milliseconds for activation of the gear motor. Setting Pulse length 2 40 ms 3 60 ms ms ms The setting should be corrected if the gear motor is too sensitive to short activation pulses. Extended service 196 Service pin - LON ON / OFF OFF This setting is only used in connection with LON communication (see the documentation for the used communication unit). 197 LON reset ON / OFF ON This setting is only used in connection with LON communication (see the documentation for the used communication unit). The grey side of the ECL Card

45 Service parameter(s) k 198 Daylight saving time changeover ON / OFF ON Choose whether you want the change to summer / winter time to be automatic or manual. ON: The controller s built-in clock automatically changes + / - one hour on the standardized days for daylight saving time changeover for Central Europe. OFF: You change manually between summer and winter time by setting the clock backward or forward. 199 Master / slave address , The setting is relevant when more controllers are working in the same ECL Comfort system (connected via the system device bus (ECL Comfort BUS)). 0: The slave receives information about the outdoor temperature (S1), system time, and signal for DHW demand in the master : The slave receives information about the outdoor temperature (S1), system time, and signal for DHW demand in the master. The slave sends information about the desired flow temperature to the master. 15: The controller is master. The master sends information about the outdoor temperature (S1) and system time. The bus is active and connected ECAs are powered. The ECL Comfort controllers can be connected via the bus to perform a larger system. The controller, which is physically connected with the outdoor temperature sensor, is the master of the entire system and automatically gets the address 15. Each slave must be configured with its own address (1... 9). Extended service However, more slaves can have the address 0 if they only have to receive information about outdoor temperature and system time. The grey side of the ECL Card

46 7a Definitions Air duct temperature Temperature measured in the air duct where the temperature is to be controlled. Balance temperature This setpoint is the basis for the flow / air duct temperature. The balance temperature can be adjusted by the room temperature, the compensation temperature and the return temperature. The balance temperature is only active if a room temperature sensor is connected. Comfort operation Normal temperature in the system controlled by the schedule. During heating the flow temperature in the system is higher to maintain the desired room temperature. During cooling the flow temperature in the system is lower to maintain the desired room temperature. Comfort temperature Temperature maintained in the circuits during comfort periods. Normally during daytime. Compensation temperature A measured temperature influencing the flow temperature reference / balance temperature. Controller mode indicator Black arrow to the right of the symbols indicating the present mode. Desired room temperature Temperature which is set as the desired room temperature. The temperature can only be controlled by the ECL Comfort controller if a room temperature sensor is installed. If a sensor is not installed, the set desired room temperature however still influences the flow temperature. In both cases the room temperature in each room is typically controlled by radiator thermostats / valves. Desired temperature Temperature based on a setting or a controller calculation. Dew point temperature Temperature at which the humidity in the air condensates. s Settings stored on the ECL Card to simplify the set up of your controller the first time. Flow temperature Temperature measured in the flow at any time. Flow temperature reference Temperature calculated by the controller on basis of the outdoor temperature and influences from the room and / or return temperatures. This temperature is used as a reference for the control. Heating circuit The circuit for heating the room / building. Heat curve A curve showing the relationship between actual outdoor temperature and required flow temperature. DHW circuit The circuit for heating the domestic hot water (DHW).

47 7b Humidity, relative This value (stated in %) refers to the indoor moisture content compared to the max. moisture content. The relative humidity is measured by the ECA 62 / 63 and is used for the calculation of the dew point temperature. Limitation temperature Temperature that influences the desired flow / balance temperature. Pt 1000 sensor All sensors used with the ECL Comfort controller are based on the Pt 1000 type. The resistance is 1000 ohm at 0 C and it changes with 3.9 ohm / degree. Optimization The controller optimizes the start time of the scheduled temperature periods. Based on the outdoor temperature, the controller automatically calculates when to start in order to reach the comfort temperature at the set time. The lower the outdoor temperature, the earlier the start time. Return temperature The temperature measured in the return influences the desired flow temperature. Room temperature sensor Temperature sensor placed in the room (reference room, typically the living room) where the temperature is to be controlled. Room temperature Temperature measured by the room temperature sensor, room panel or remote control. The room temperature can only be controlled directly if a sensor is installed. The room temperature influences the desired flow temperature. Schedule Schedule for periods with comfort and setback temperatures. The schedule can be made individually for each week day and may consist of up to 3 comfort periods per day. Setback temperature Temperature maintained in the heating / DHW circuit during setback temperature periods. State / mode indicators White arrow to the left of the symbols (sun / moon). The white arrow indicates the present state, comfort (sun) or setback (moon), when the controller is in scheduled operation mode. The black arrow symbol indicates the mode of the controller. Time line / bar Line with numbers representing the hours. Below the time line, time bars represent scheduled periods with comfort temperature. The bar is divided into half hour sections. Weather compensation Flow temperature control based on the outdoor temperature. The control is related to a user-defined heat curve. The definitions apply to the Comfort 200 as well as ECL Comfort 300 series. Consequently, you might come across expressions that are not mentioned in your guide.

48 6a Hot points The time shown in the display is one hour off? See the summer time changeover in line 198, section 32. The time shown in the display is not correct? The internal clock may have been reset, if there has been a power break for more than 12 hours. Set time and date. See section 17. The ECL Card is lost? Switch the power off and on again to see the system type and the software generation of the controller. Order a replacement from your Danfoss representative. Insert the new ECL Card with the yellow side facing you and make sure that you copy your personal settings from the controller to the ECL Card. See section 34. The room temperature is too low? Make sure that the radiator thermostat does not limit the room temperature. If you still cannot obtain the desired room temperature by adjusting the radiator thermostats, the flow temperature is too low. Increase the desired room temperature (section 3). If this does not help, adjust the heat curve / balance temperature (section 20). The room temperature is too high during setback periods? Make sure that the min. flow temperature limitation is not too high. See section 22. The temperature is unstable? Check that the flow temperature sensor is correctly connected and in the right place. Adjust the control parameters (section 26). If the controller has a room temperature signal, see section 23. The controller does not operate and the control valve is closed? Check that the flow temperature sensor is measuring the correct value, see section 1. Check the influence from other measured temperatures.

49 6b How to make an extra comfort period in the schedule? You can make an additional comfort period by pushing the shift and + buttons simultaneously for 2 seconds. See section 4. How to remove a comfort period in the schedule? You can remove a comfort period by pushing the shift and - buttons simultaneously for 2 seconds. See section 4. How to restore your personal settings? Insert the ECL Card with the yellow side facing you. Go to line 9 (is not displayed), which is the second line below line 7. Select copy direction 'card to controller' (left to right) by using the shift button. Push the + button to copy. See section 5. This is a collection of frequently asked questions for the ECL Comfort 200 as well as ECL Comfort 300 series. Consequently, you might come across some questions that do not apply to your application.

50 4a Set your personal schedule Monitor the current schedules Select between lines 1-7 (Monday, Tuesday... Sunday) to see your individual schedules. Changeover ime Line Periods with comfort temp. are shown as black bars Time line Change the schedules Select appropriate day. The changeover point blinks Adjust the first blinking changeover point, if required. The end of the bar moves, extending or reducing the comfort period. Shift to next changeover point and adjust accordingly. The yellow side of the ECL Card

51 4b Add an extra comfort period Push the shift and + button simultaneously for 2 seconds. The new period appears Adjust the new period. Remove a comfort period Select the period to be removed (blinking changeover point) Push shift and - buttons simultaneously for 2 seconds. Cancel changes in your personal settings Push - and + buttons simultaneously for 2 seconds to restore the factory settings of the actual schedule. The yellow side of the ECL Card

52 2 Select circuit mode During scheduled operation (clock), the state indicator (a white arrow) will show you the control mode of the selected circuit. The white arrow will blink when this is a heating circuit and it is in the optimizing period. State indicator (white arrow) Function selector (black arrow) 20 Function selector. Push the button to change the mode of the circuit. The black arrow shows you which of the modes you have chosen. What do the symbols mean? Manual operation Used only at maintenance and service. Note! The protection against frost is switched off when this mode is selected. Scheduled operation This is the normal mode. The temperature is controlled according to your schedule with automatic changeover to / from comfort and setback temperature periods. Constant comfort temperature The schedule is not in operation. Use this mode when a constant comfort temperature is desired. Constant setback temperature The schedule is not in operation. Use this mode when you are away on holiday, etc. Standby The selected circuit is stopped. The system is still protected against frost. The yellow side of the ECL Card

53 Set your room temperature 3 Go to display C. Setting the desired room temperature 20 Desired room temp. in comfort mode 16 Desired room temp. in setback mode Select the constant comfort mode. Set the desired room temperature for the comfort mode. Select the constant setback mode. Set the desired room temperature for the setback mode. Select the desired mode (section 2). The setting of the desired room temperature is important even if a room temperature sensor / room panel / remote control is not connected. Is the room temperature too low? Make sure that the radiator thermostat does not limit the room temperature. If you still cannot obtain the desired room temperature by adjusting the radiator thermostats, the flow temperature is too low. Increase the desired room temperature. The yellow side of the ECL Card

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